>In my NetBSD-current box (as of 2001/08/22), both of zh_TW.Big5 and
>zh_TW.BIG5 exist.
In fact, they are the same. :)
zh_TW.Big5 name come from Linux
zh_TW.BIG5 name come from FreeBSD
For match X locale, I use zh_TW.Big5.